Heat
New member here. I have a 2002 dodge ram 1500 quad cab with a 4.7 liter engine. I’ve been haveing trouble with the A/C and heat for the last 2-3 years. I’ve had it in 2 shops with both saying it’s fixed. The last shop said I was kissing a blend door so they replaced it. Now the air blows good and cold but it feels like the fan need about gear to blow harder. I do hear the fan speed up with every click but still does t feel like it’s hard enough. I can deal with that if it’s a fan needing to be replaced. The heat on the other hand is not blowing hot at all. I hear the blend door switching when I turn the **** but the air is cool. The shop I had it at is a good shop. They took the box apart and clean all the dirt and debris out of the ac evaporator and the heater core but and flush the heater core but it’s still not getting any heat. Any help would be appreciated. Oh and the blend door has been replaced.Thanks
Last edited by Rmcnair333; Sep 19, 2024 at 07:18 PM.
I'm surprised a shop would spend money and labor on cleaning an evaporator and heater core after removing it from these trucks. The labor in cleaning them alone would buy both a new heater core and evaporator.
I would start with feeling the heater hoses after warmed to operating temp and see if they are the same temp. If they are core is flowing okay. Personally I've never had luck flushing a heater core. The deposits and build up inside rarely get cleaned out, just removes enough to "pass inspection". The blend doors are a clam shell master/slave design. You can see the pull rod under the glove box you can inspect the rod for movement when changing temp. I assume if they pulled the box out they inspected the recirculation door, but its common to break and fall on top of the fan limiting air flow. You can remove the blower and feel or look up to see if its laying there.
In the end, I agree, you paid someone to fix and they didn't, return to shop.
I would start with feeling the heater hoses after warmed to operating temp and see if they are the same temp. If they are core is flowing okay. Personally I've never had luck flushing a heater core. The deposits and build up inside rarely get cleaned out, just removes enough to "pass inspection". The blend doors are a clam shell master/slave design. You can see the pull rod under the glove box you can inspect the rod for movement when changing temp. I assume if they pulled the box out they inspected the recirculation door, but its common to break and fall on top of the fan limiting air flow. You can remove the blower and feel or look up to see if its laying there.
In the end, I agree, you paid someone to fix and they didn't, return to shop.
I'm surprised a shop would spend money and labor on cleaning an evaporator and heater core after removing it from these trucks. The labor in cleaning them alone would buy both a new heater core and evaporator.
I would start with feeling the heater hoses after warmed to operating temp and see if they are the same temp. If they are core is flowing okay. Personally I've never had luck flushing a heater core. The deposits and build up inside rarely get cleaned out, just removes enough to "pass inspection". The blend doors are a clam shell master/slave design. You can see the pull rod under the glove box you can inspect the rod for movement when changing temp. I assume if they pulled the box out they inspected the recirculation door, but its common to break and fall on top of the fan limiting air flow. You can remove the blower and feel or look up to see if its laying there.
In the end, I agree, you paid someone to fix and they didn't, return to shop.
I would start with feeling the heater hoses after warmed to operating temp and see if they are the same temp. If they are core is flowing okay. Personally I've never had luck flushing a heater core. The deposits and build up inside rarely get cleaned out, just removes enough to "pass inspection". The blend doors are a clam shell master/slave design. You can see the pull rod under the glove box you can inspect the rod for movement when changing temp. I assume if they pulled the box out they inspected the recirculation door, but its common to break and fall on top of the fan limiting air flow. You can remove the blower and feel or look up to see if its laying there.
In the end, I agree, you paid someone to fix and they didn't, return to shop.
Ive been in contact with the shop and it will be going back I was just wondering if I could find any other people with the same issue that could give me a clue. It does get to temp but just no heat.
I'm surprised a shop would spend money and labor on cleaning an evaporator and heater core after removing it from these trucks. The labor in cleaning them alone would buy both a new heater core and evaporator.
I would start with feeling the heater hoses after warmed to operating temp and see if they are the same temp. If they are core is flowing okay. Personally I've never had luck flushing a heater core. The deposits and build up inside rarely get cleaned out, just removes enough to "pass inspection". The blend doors are a clam shell master/slave design. You can see the pull rod under the glove box you can inspect the rod for movement when changing temp. I assume if they pulled the box out they inspected the recirculation door, but its common to break and fall on top of the fan limiting air flow. You can remove the blower and feel or look up to see if its laying there.
In the end, I agree, you paid someone to fix and they didn't, return to shop.
I would start with feeling the heater hoses after warmed to operating temp and see if they are the same temp. If they are core is flowing okay. Personally I've never had luck flushing a heater core. The deposits and build up inside rarely get cleaned out, just removes enough to "pass inspection". The blend doors are a clam shell master/slave design. You can see the pull rod under the glove box you can inspect the rod for movement when changing temp. I assume if they pulled the box out they inspected the recirculation door, but its common to break and fall on top of the fan limiting air flow. You can remove the blower and feel or look up to see if its laying there.
In the end, I agree, you paid someone to fix and they didn't, return to shop.







